ANSA.it - News in English - James Bond switches to Fiat Panda
Fiat Panda in Casino Royale
And the Italian newspaper La Repubblica reports that "it hasn't been decided how many gadgets the Panda will have, but Brosnan is enthusiastic," and notes that while an Aston Marton costs 140,000 pounds, the Panda is a mere economic 6,000.
(I guess Blair's cut M's budget!!)
UPDATE (Aug. 8): Collection of Metafilter links regarding Bond's Panda.